Simulation research on radar—ESM assistant correlation in the anti-missile operations

2014 ◽  
Author(s):  
Zhenxing Liu ◽  
Ning Jiang ◽  
Qishui Chen ◽  
Lei Yu ◽  
Longtao Wang
Keyword(s):  
Simulation Research

Simulation research on LS RISC microprocessor

2009 ◽  
Vol 28 (10) ◽  
pp. 2690-2692
Author(s):  
Xiao-li SHI ◽  
Fa-cun ZHANG
Keyword(s):  
Simulation Research

scholarly journals Simulation Research on Exploiting Electrostatic Potential Difference Sensing for Shaft Centerline Orbit Reconstruction

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 79455-79462 ◽  
Author(s):  
Kaihao Tang ◽  
Hongli Hu ◽  
Lin Li ◽  
Yong Qin ◽  
Xiaoxin Wang
Keyword(s):  
Electrostatic Potential ◽  
Potential Difference ◽  
Simulation Research

scholarly journals Impact of cardiopulmonary resuscitation on a cannot intubate, cannot oxygenate condition: a randomised crossover simulation research study of the interaction between two algorithms

BMJ Open ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. e030430
Author(s):  
Thomas Ott ◽  
Jascha Stracke ◽  
Susanna Sellin ◽  
Marc Kriege ◽  
Gerrit Toenges ◽  
...  
Keyword(s):  
Decision Making ◽  
Cardiac Arrest ◽  
Cardiopulmonary Resuscitation ◽  
Primary Outcome ◽  
Research Study ◽  
University Hospital ◽  
Simulated Patients ◽  
Stressful Situation ◽  
Simulation Research ◽  
Simulation Centre

ObjectivesDuring a ‘cannot intubate, cannot oxygenate’ situation, asphyxia can lead to cardiac arrest. In this stressful situation, two complex algorithms facilitate decision-making to save a patient’s life: difficult airway management and cardiopulmonary resuscitation. However, the extent to which competition between the two algorithms causes conflicts in the execution of pivotal treatment remains unknown. Due to the rare incidence of this situation and the very low feasibility of such an evaluation in clinical reality, we decided to perform a randomised crossover simulation research study. We propose that even experienced healthcare providers delay cricothyrotomy, a lifesaving approach, due to concurrent cardiopulmonary resuscitation in a ‘cannot intubate, cannot oxygenate’ situation.DesignDue to the rare incidence and dynamics of such a situation, we conducted a randomised crossover simulation research study.SettingWe collected data in our institutional simulation centre between November 2016 and November 2017.ParticipantsWe included 40 experienced staff anaesthesiologists at our tertiary university hospital centre.InterventionThe participants treated two simulated patients, both requiring cricothyrotomy: one patient required cardiopulmonary resuscitation due to asphyxia, and one patient did not require cardiopulmonary resuscitation. Cardiopulmonary resuscitation was the intervention. Participants were evaluated by video records.Primary outcome measuresThe difference in ‘time to ventilation through cricothyrotomy’ between the two situations was the primary outcome measure.ResultsThe results of 40 participants were analysed. No carry-over effects were detected in the crossover design. During cardiopulmonary resuscitation, the median time to ventilation was 22 s (IQR 3–40.5) longer than that without cardiopulmonary resuscitation (p=0.028), including the decision-making time.ConclusionCricothyrotomy, which is the most crucial treatment for cardiac arrest in a ‘cannot intubate, cannot oxygenate’ situation, was delayed by concurrent cardiopulmonary resuscitation. If cardiopulmonary resuscitation delays cricothyrotomy, it should be interrupted to first focus on cricothyrotomy.

Design and simulation research of the double-spin folding mechanism based on a suspended missile

2021 ◽  
pp. 154851292110231
Author(s):  
ZH Yuan ◽  
SY Guo ◽  
SN Zhang ◽  
JQ Zhao ◽  
WJ Lu ◽  
...  
Keyword(s):  
High Reliability ◽  
Lift Coefficient ◽  
Great Influence ◽  
Reference Value ◽  
Aerodynamic Characteristics ◽  
Simulation Software ◽  
Fluid Simulation ◽  
Simulation Research ◽  
Double Spin ◽  
Locking Mechanism

Based on the suspension of a missile using folding rotary wings and airbags, in order to improve the basic parameters and motion characteristics of the rotor during the unfolding process and analyze the aerodynamic characteristics of the entire device in the suspension state, after proposing a scheme of double-spin mechanism, the main folding and unfolding mechanism, initial driving device, rotating driving device, and locking mechanism were designed, and the simulation research is studied by the Automatic Dynamic Analysis of Mechanical System and Ansys Fluent Fluid Simulation software, respectively. The results show that the rotation rate was controlled at 41.8 mm/s, the various motion parameters are reasonable, and the operation process is relatively smooth, with high reliability. The speed and pressure value at the tip of the rotor are higher and the aerodynamic disturbance is obvious, which has a great influence on the aerodynamic performance. The speed and pressure distribution of the surrounding flow field is stable, the lift provided is 46 N, and the lift coefficient is 0.55, which can ensure the long-time suspension state of the missile. This paper puts forward a valuable design idea and has practical reference value for the research of the suspended missile.

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